5-ri no Otoko ni Korosare Sou na Hodo Shuuchaku Sateimasu

Lavinia is a villainous queen in a novel who is murdered by someone she trusts. When the reader wakes up as Lavinia, she knows there are five murder suspects: her seemingly loyal knight, her sly chancellor, her spy who was formerly an assassin, a brutal tribal king, and her brother, who's also her political rival. These men are all fixated on her, but when Lavinia changes her tyrannic ways, their obsession becomes less hostile and more friendly... even romantic, for some! Although her odds of survival are higher, Lavinia isn't sure she can juggle the affections of her dangerous suitors... (Source: Tappytoon)